Oscillating or rotating machine elements require rolling bearings for smooth functioning. The latter provide support as well as guidance to rotational movements. It also transfers loads between components like wheels, shafts and axles. Ball bearings can be termed to be a rolling bearing type with ball rolling element. It is within the groove or ring raceway that the ball sits, thereby causing low contact area. Use Reduced contact area that the ball bearing has is what decreases friction. However, the weight that can be carried by the bearing is limited severely. Traditionally, ball bearings are used in low-load, high speed applications. Excess tear and wear is prevented by their reduced vibration, noise and friction. Generally, ball bearings are designed to accommodate loads perpendicular to shaft or radial loads. A few types may handle axle loads that is, parallel to shaft. About deep-groove ball bearings Deep groove ball bearings can be stated to be quite similar to that of the tr